Hybrid excitation three-phase brushless synchronous generator based on full wave induction excitation

A technology of synchronous generator and mixed excitation, which is applied in the direction of controlling the generator through the change of the magnetic field and connecting with the control/drive circuit. It can solve the problems of affecting the normal operation of the load and the inability to adjust the permanent magnet generator, and achieves a simple and flexible structure. The effect of magnetic adjustment ability and high reliability

Active Publication Date: 2016-08-24
SHANDONG UNIV
View PDF5 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the nature of the permanent magnet itself, when the load causes the armature current to change or the speed to change, the permanent magnet generator cannot

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Hybrid excitation three-phase brushless synchronous generator based on full wave induction excitation
  • Hybrid excitation three-phase brushless synchronous generator based on full wave induction excitation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] The present invention will be further described below in conjunction with the drawings and embodiments.

[0025] Such as figure 1 As shown, a hybrid excitation three-phase brushless generator based on full-wave induction excitation includes a casing in which a stator and a rotor are coaxially installed. The stator core is basically the same as an ordinary permanent magnet synchronous generator. A three-phase distributed armature winding and a single-phase excitation winding are embedded on the stator core. The excitation winding and a DC excitation detection control circuit form an excitation regulator. Both the rotor induction winding and the tangentially magnetized permanent magnets are embedded in the rotor core, and the permanent magnets are embedded in the closed slender slot of the rotor core. The rotor induction winding is a concentrated winding, which is embedded and wound in the large open slot of the rotor core and shorted by itself. The number of poles of the in...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a hybrid excitation three-phase brushless synchronous generator based on full wave induction excitation. The direction, magnitude and cycle of a current applied to a stator excitation winding change, the direction of a built induction excitation magnetic field changes with the rotation of a rotor magnetic pole, so that an induction current is generated on a rotor winding and can be maintained in the same direction all the time, and the rotor induction winding generates magnetic potential which is the same as or opposite to that of a permanent magnet, the magnetic potential and the magnetic potential of the permanent magnet are in a parallel connection relation in an air gap, and the air gap magnetic field is bidirectionally adjusted by adjustment of the excitation magnetic potential to achieve parallel connection hybrid excitation. According to the hybrid excitation three-phase brushless synchronous generator, the induction magnetic potential is generated in the rotor winding according to a double-pole induction principle, the induction magnetic potential and the permanent magnet in the rotor jointly generate the air gap magnetic field, and the adjustment of the magnetic field of the motor is achieved. Through an induction excitation effect, a brush-slip ring system is omitted, and with the application of a stator excitation regulator, the rotor induction current becomes controllable full-wave current.

Description

Technical field [0001] The invention relates to a hybrid excitation three-phase brushless synchronous generator based on full-wave induction excitation. Background technique [0002] With the continuous improvement of the performance of permanent magnet materials and the decrease in cost, permanent magnet synchronous motors have attracted more and more attention because of their simple structure and reliable operation, especially their high efficiency that other motors can’t match. However, due to the nature of the permanent magnet itself, when the load causes the armature current to change or the speed changes, the permanent magnet generator cannot adjust the excitation magnetomotive force by adjusting the excitation current like an ordinary electric excitation generator, which affects the normal operation of the load. . [0003] How to realize the effective regulation and control of the air gap magnetic field has always been a hot and difficult point in the research of permanent...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): H02K11/30H02P9/14
CPCH02P9/14
Inventor 朱常青王秀和魏蓓李国建
Owner SHANDONG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap